Home / 631,922.60-872,053.26-345,443.96

Finding the Fourth Proportional to 631,922.60, 872,053.26 and 345,443.96

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Solution

The fourth proportional to 631,922.60, 872,053.26 and 345,443.96 is: 476,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,922.60 : 872,053.26 = 345,443.96 : x
  2. Step 2: Convert to fraction form
    631,922.60/872,053.26 = 345,443.96/x
  3. Step 3: Cross multiply
    631,922.60x = 872,053.26 × 345,443.96
  4. Step 4: Simplify right side
    631,922.60x = 301,245,531,465.31
  5. Step 5: Solve for x
    x = 301,245,531,465.31/631,922.60
  6. Step 6: Final answer
    x = 476,712.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.